19 June 2003 Laser photoacoustic microscopy of solids with residual stresses
Author Affiliations +
Proceedings Volume 5066, Lasers for Measurements and Information Transfer 2002; (2003) https://doi.org/10.1117/12.501390
Event: Lasers for Measurements and Information Transfer 2002, 2002, St. Petersburg, Russian Federation
Abstract
The results of scanning photodeflection and photoacoustic piezoelectric imaging of the Vickers indentation on Al2O3-SiC-TiC ceramic composite are presented. It is demonstrated that external loading influences on the photoacoustic signal behavior near the radial crack tips. The theoretical model of the photoacoustic signal behavior near radial cracks under external loading is proposed. It is shown that the photoacoustic signal modifications near the crack tips are in a good agreement with the proposed theoretical model both for normal and shear external stresses. The obtained results demonstrate that the photoacoustic piezoelectric method is able to provide an important information about stress intensity factors of the crack tips.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kyrill L. Muratikov, Kyrill L. Muratikov, Alexej L. Glazov, Alexej L. Glazov, } "Laser photoacoustic microscopy of solids with residual stresses", Proc. SPIE 5066, Lasers for Measurements and Information Transfer 2002, (19 June 2003); doi: 10.1117/12.501390; https://doi.org/10.1117/12.501390
PROCEEDINGS
6 PAGES


SHARE
Back to Top